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Debt - Mortgage Debt (Details) | Oct. 27, 2015 USD ($) | Jul. 02, 2015 USD ($) | Apr. 14, 2015 USD ($) | Oct. 09, 2015 USD ($) | Sep. 30, 2015 Hotel | Jul. 01, 2015 USD ($) | May. 11, 2015 USD ($) | Apr. 10, 2015 USD ($)
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Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Number of hotel properties secured by mortgage debt (in hotels) | Hotel |  |  |  |  | 12 |  |  |
Number of hotels (in hotels) | Hotel |  |  |  |  | 29 |  |  |
Mortgages [Member] | Renaissance Worthington [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Mortgage loan amount |  |  | $ 85,000,000 |  |  |  |  | $ 52,600,000.0
Fixed rate percentage |  |  | 3.66% |  | 3.6625% |  |  |
Interest only period (in years) |  |  | 2 years |  |  |  |  |
Amortization period (in years) |  |  | 30 years |  |  |  |  |
Mortgages [Member] | Frenchman's Reef and Morning Star Marriott Beach [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Mortgage loan amount |  |  |  |  |  |  | $ 56,200,000.0 |
Fixed rate percentage |  |  |  |  |  |  | 5.44% |
Mortgages [Member] | JW Marriott Denver at Cherry Creek [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Mortgage loan amount |  | $ 65,000,000.0 |  |  |  | $ 38,100,000.0 |  |
Fixed rate percentage |  | 4.33% |  |  | 4.33% |  |  |
Amortization period (in years) |  | 30 years |  |  |  |  |  |
Mortgages [Member] | Orlando Airport Marriott [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Fixed rate percentage |  |  |  |  | 5.68% |  |  |
Subsequent Event [Member] | Mortgages [Member] | Orlando Airport Marriott [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Mortgage loan amount |  |  |  | $ 55,300,000.0 |  |  |  |
Fixed rate percentage |  |  |  | 5.68% |  |  |  |
Subsequent Event [Member] | Mortgages [Member] | Westin Boston Waterfront Hotel [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Mortgage loan amount | $ 205,000,000.0 |  |  |  |  |  |  |
Fixed rate percentage | 4.36% |  |  |  |  |  |  |
Amortization period (in years) | 30 years |  |  |  |  |  |  |

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